Abstract
The neutron sensitivity of vanadium self powered neutron detectors (Type 5503-B), manufactured by Studsvik, Sweden, has been measured. Using the calculational model developed by Warren, the neutron sensitivity of these detectors has been computed taking into account additional factors viz. flux depression caused by the detector and the interaction of 52V gamma rays with the emitter, the correction factors due to which have been evaluated to be 0.957 and 1.03 respectively. The evaluation of different parameters that are necessary in this connection and the neutron flux density determination at the position of irradiation of these detectors by gold foil activation, are presented. The measured and calculated values of neutron sensitivity are observed to agree to within 4%.
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